Mercurial > hg > early-roguelike
annotate xrogue/passages.c @ 317:aab761616489 default tip
Rearrange some Autoconf files.
Autoconf was failing to detect install-sh at the top level and needed
some explicit directions. It also wants config.guess and config.sub to
be provided too.
A few other macros have also been updated.
author | John "Elwin" Edwards |
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date | Tue, 05 Sep 2023 20:05:24 -0400 |
parents | e52a8a7ad4c5 |
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rev | line source |
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1 /* |
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2 passages.c - Draw the connecting passages |
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3 |
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4 XRogue: Expeditions into the Dungeons of Doom |
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5 Copyright (C) 1991 Robert Pietkivitch |
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6 All rights reserved. |
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7 |
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8 Based on "Advanced Rogue" |
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9 Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T |
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10 All rights reserved. |
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11 |
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12 Based on "Rogue: Exploring the Dungeons of Doom" |
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13 Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman |
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14 All rights reserved. |
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15 |
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16 See the file LICENSE.TXT for full copyright and licensing information. |
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17 */ |
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18 |
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19 #include <stdlib.h> |
133
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20 #include <curses.h> |
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21 #include "rogue.h" |
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22 |
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23 void conn(int r1, int r2); |
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24 void door(struct room *rm, coord *cp); |
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25 |
133
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26 /* |
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27 * do_passages: |
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28 * Draw all the passages on a level. |
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29 */ |
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30 |
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31 void |
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32 do_passages(void) |
133
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33 { |
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34 register struct rdes *r1, *r2 = NULL; |
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35 register int i, j; |
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36 register int roomcount; |
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37 static struct rdes |
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38 { |
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39 bool conn[MAXROOMS]; /* possible to connect to room i? */ |
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40 bool isconn[MAXROOMS]; /* connection been made to room i? */ |
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41 bool ingraph; /* this room in graph already? */ |
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42 } rdes[MAXROOMS] = { |
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43 { { 0, 1, 0, 1, 0, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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44 { { 1, 0, 1, 0, 1, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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45 { { 0, 1, 0, 0, 0, 1, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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46 { { 1, 0, 0, 0, 1, 0, 1, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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47 { { 0, 1, 0, 1, 0, 1, 0, 1, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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48 { { 0, 0, 1, 0, 1, 0, 0, 0, 1 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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49 { { 0, 0, 0, 1, 0, 0, 0, 1, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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50 { { 0, 0, 0, 0, 1, 0, 1, 0, 1 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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51 { { 0, 0, 0, 0, 0, 1, 0, 1, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0 }, |
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52 }; |
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53 |
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54 /* |
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55 * reinitialize room graph description |
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56 */ |
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57 for (i = 0; i < MAXROOMS; i++) |
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58 { |
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59 r1 = &rdes[i]; |
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60 for (j = 0; j < MAXROOMS; j++) |
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61 r1->isconn[j] = FALSE; |
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62 r1->ingraph = FALSE; |
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63 } |
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64 |
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65 /* |
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66 * starting with one room, connect it to a random adjacent room and |
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67 * then pick a new room to start with. |
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68 */ |
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69 roomcount = 1; |
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70 r1 = &rdes[rnd(MAXROOMS)]; |
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71 r1->ingraph = TRUE; |
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72 do |
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73 { |
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74 /* |
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75 * find a room to connect with |
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76 */ |
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77 j = 0; |
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78 for (i = 0; i < MAXROOMS; i++) |
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79 if (r1->conn[i] && !rdes[i].ingraph && rnd(++j) == 0) |
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80 r2 = &rdes[i]; |
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81 /* |
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82 * if no adjacent rooms are outside the graph, pick a new room |
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83 * to look from |
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84 */ |
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85 if (j == 0) |
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86 { |
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87 do |
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88 r1 = &rdes[rnd(MAXROOMS)]; |
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89 until (r1->ingraph); |
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90 } |
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91 /* |
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92 * otherwise, connect new room to the graph, and draw a tunnel |
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93 * to it |
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94 */ |
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95 else |
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96 { |
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97 r2->ingraph = TRUE; |
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98 i = r1 - rdes; |
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99 j = r2 - rdes; |
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100 conn(i, j); |
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101 r1->isconn[j] = TRUE; |
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102 r2->isconn[i] = TRUE; |
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103 roomcount++; |
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104 } |
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105 } while (roomcount < MAXROOMS); |
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106 |
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107 /* |
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108 * attempt to add passages to the graph a random number of times so |
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109 * that there isn't just one unique passage through it. |
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110 */ |
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111 for (roomcount = rnd(5); roomcount > 0; roomcount--) |
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112 { |
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113 r1 = &rdes[rnd(MAXROOMS)]; /* a random room to look from */ |
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114 /* |
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115 * find an adjacent room not already connected |
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116 */ |
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117 j = 0; |
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118 for (i = 0; i < MAXROOMS; i++) |
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119 if (r1->conn[i] && !r1->isconn[i] && rnd(++j) == 0) |
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120 r2 = &rdes[i]; |
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121 /* |
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122 * if there is one, connect it and look for the next added |
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123 * passage |
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124 */ |
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125 if (j != 0) |
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126 { |
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127 i = r1 - rdes; |
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128 j = r2 - rdes; |
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129 conn(i, j); |
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130 r1->isconn[j] = TRUE; |
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131 r2->isconn[i] = TRUE; |
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132 } |
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133 } |
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134 } |
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135 |
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136 /* |
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137 * conn: |
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138 * Draw a corridor from a room in a certain direction. |
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139 */ |
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140 |
220
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XRogue: convert to ANSI-style function declarations.
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133
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141 void |
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133
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142 conn(int r1, int r2) |
133
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143 { |
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144 register struct room *rpf, *rpt = NULL; |
304 | 145 register signed char rmt; |
133
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146 register int distance = 0, max_diag, offset = 0, i; |
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147 register int rm; |
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148 int turns[3], turn_dist[3]; |
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149 register char direc; |
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150 coord delta = {0, 0}, curr, turn_delta = {0,0}, spos = {0,0}, epos = {0,0}; |
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151 |
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152 if (r1 < r2) |
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153 { |
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154 rm = r1; |
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155 if (r1 + 1 == r2) |
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156 direc = 'r'; |
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157 else |
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158 direc = 'd'; |
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159 } |
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160 else |
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161 { |
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162 rm = r2; |
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163 if (r2 + 1 == r1) |
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164 direc = 'r'; |
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165 else |
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166 direc = 'd'; |
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167 } |
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168 rpf = &rooms[rm]; |
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169 /* |
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170 * Set up the movement variables, in two cases: |
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171 * first drawing one down. |
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172 */ |
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173 if (direc == 'd') |
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174 { |
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175 rmt = rm + 3; /* room # of dest */ |
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176 rpt = &rooms[rmt]; /* room pointer of dest */ |
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177 delta.x = 0; /* direction of move */ |
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178 delta.y = 1; |
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179 spos.x = rpf->r_pos.x; /* start of move */ |
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180 spos.y = rpf->r_pos.y; |
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181 epos.x = rpt->r_pos.x; /* end of move */ |
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182 epos.y = rpt->r_pos.y; |
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183 if (!(rpf->r_flags & ISGONE)) /* if not gone pick door pos */ |
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184 { |
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185 spos.x += rnd(rpf->r_max.x-2)+1; |
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186 spos.y += rpf->r_max.y-1; |
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187 } |
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188 if (!(rpt->r_flags & ISGONE)) |
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189 epos.x += rnd(rpt->r_max.x-2)+1; |
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190 distance = abs(spos.y - epos.y) - 1; /* distance to move */ |
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191 turn_delta.y = 0; /* direction to turn */ |
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192 turn_delta.x = (spos.x < epos.x ? 1 : -1); |
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193 offset = abs(spos.x - epos.x); /* how far to turn */ |
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194 } |
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195 else if (direc == 'r') /* setup for moving right */ |
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|
196 { |
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197 rmt = rm + 1; |
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|
198 rpt = &rooms[rmt]; |
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199 delta.x = 1; |
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diff
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200 delta.y = 0; |
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201 spos.x = rpf->r_pos.x; |
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202 spos.y = rpf->r_pos.y; |
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203 epos.x = rpt->r_pos.x; |
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diff
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204 epos.y = rpt->r_pos.y; |
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diff
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205 if (!(rpf->r_flags & ISGONE)) |
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diff
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|
206 { |
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diff
changeset
|
207 spos.x += rpf->r_max.x-1; |
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diff
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208 spos.y += rnd(rpf->r_max.y-2)+1; |
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diff
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|
209 } |
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parents:
diff
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|
210 if (!(rpt->r_flags & ISGONE)) |
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parents:
diff
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|
211 epos.y += rnd(rpt->r_max.y-2)+1; |
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parents:
diff
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212 distance = abs(spos.x - epos.x) - 1; |
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diff
changeset
|
213 turn_delta.y = (spos.y < epos.y ? 1 : -1); |
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parents:
diff
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|
214 turn_delta.x = 0; |
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parents:
diff
changeset
|
215 offset = abs(spos.y - epos.y); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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diff
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|
216 } |
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diff
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|
217 else |
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diff
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|
218 debug("error in connection tables"); |
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diff
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|
219 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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diff
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|
220 /* |
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parents:
diff
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|
221 * Draw in the doors on either side of the passage or just put #'s |
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parents:
diff
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|
222 * if the rooms are gone. |
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parents:
diff
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|
223 */ |
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diff
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|
224 if (!(rpf->r_flags & ISGONE)) door(rpf, &spos); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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225 else |
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diff
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|
226 { |
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diff
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227 cmov(spos); |
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diff
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|
228 addch('#'); |
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diff
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|
229 } |
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diff
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230 if (!(rpt->r_flags & ISGONE)) door(rpt, &epos); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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diff
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|
231 else |
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diff
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|
232 { |
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diff
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|
233 cmov(epos); |
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diff
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|
234 addch('#'); |
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diff
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|
235 } |
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|
236 |
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237 /* How far can we move diagonally? */ |
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238 max_diag = min(distance, offset); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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|
239 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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|
240 /* |
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parents:
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241 * Decide how many turns we will have. |
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|
242 */ |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
243 for (i=0; i<3; i++) turn_dist[i] = 0; /* Init distances */ |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
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244 if (max_diag > 0) { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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diff
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245 int nturns; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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diff
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|
246 |
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diff
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|
247 for (i=0, nturns=0; i<3; i++) { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
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|
248 if (rnd(3 - i + nturns) == 0) { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
249 nturns++; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
250 turns[i] = 0; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
251 } |
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252 else turns[i] = -1; |
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253 } |
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254 } |
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255 else { |
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256 /* Just use a straight line (middle turn) */ |
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257 turns[0] = turns[2] = -1; |
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258 turns[1] = 0; |
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259 } |
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260 |
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261 /* |
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262 * Now decide how long each turn will be (for those selected above). |
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263 */ |
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264 while (max_diag > 0) { |
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265 for (i=0; i<3; i++) { |
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266 if (turns[i] >= 0 && max_diag > 0 && rnd(2) == 0) { |
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267 turn_dist[i]++; |
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268 max_diag--; |
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269 } |
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270 } |
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271 } |
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272 |
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273 /* |
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274 * If we have extra offset space, add it to the straight turn. |
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275 */ |
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276 if (offset > distance) turn_dist[1] += offset - distance; |
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277 |
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278 /* |
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279 * Decide where we want to make our turns. |
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280 * First calculate the offsets, then use those offsets to calculate |
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281 * the exact position relative to "distance." |
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282 */ |
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283 turns[0] = rnd(distance - turn_dist[0] - turn_dist[2]); |
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284 turns[2] = rnd(distance - turn_dist[0] - turn_dist[2] - turns[0]); |
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285 turns[1] = rnd(distance - turn_dist[0] - turn_dist[2] - |
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286 turns[0] - turns[2]); |
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287 |
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288 turns[0] = distance - turns[0]; |
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289 turns[1] = turns[0] - turn_dist[0] - turns[1]; |
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290 turns[2] = turns[1] - turns[2]; |
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291 |
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292 /* |
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293 * Get ready to move... |
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294 */ |
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295 curr.x = spos.x; |
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296 curr.y = spos.y; |
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297 while (distance > 0) { |
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298 /* |
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299 * Move to next row/column |
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300 */ |
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301 curr.x += delta.x; |
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302 curr.y += delta.y; |
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303 |
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304 /* |
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305 * Check if we are at a turn place; if so make a turn |
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306 */ |
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307 for (i=0; i<3; i++) { |
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308 if (distance == turns[i] && turn_dist[i] > 0) { |
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309 /* |
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310 * If this is the start of a straight path, |
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311 * we might put in a right-angle turn (33% chance). |
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312 */ |
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313 if (i == 1 && rnd(3) == 0) { |
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314 cmov(curr); |
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315 addch(PASSAGE); |
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316 } |
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317 |
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318 /* Now dig the turn */ |
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319 while (turn_dist[i]--) { |
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320 curr.x += turn_delta.x; |
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321 curr.y += turn_delta.y; |
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322 cmov(curr); |
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323 addch(PASSAGE); |
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324 if (i != 1) { /* A diagonal */ |
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325 if (--distance > 0) { |
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326 curr.x += delta.x; |
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327 curr.y += delta.y; |
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328 } |
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329 } |
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330 } |
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331 } |
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332 } |
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333 |
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334 if (distance > 0) { |
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335 /* |
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336 * Dig the passage. |
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337 */ |
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338 cmov(curr); |
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339 addch(PASSAGE); |
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340 distance--; |
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341 } |
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342 } |
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343 curr.x += delta.x; |
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344 curr.y += delta.y; |
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345 if (!ce(curr, epos)) |
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346 msg("Warning, connectivity problem (%d, %d) to (%d, %d).", |
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347 curr.y, curr.x, epos.y, epos.x); |
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348 } |
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349 |
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350 /* |
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351 * Add a door or possibly a secret door |
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352 * also enters the door in the exits array of the room. |
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353 */ |
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354 |
220
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|
355 void |
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356 door(struct room *rm, coord *cp) |
133
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357 { |
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358 struct linked_list *newroom; |
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359 coord *exit; |
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360 |
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361 cmov(*cp); |
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362 |
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363 if (rnd(10) < (level - 1) && rnd(100) < 20) |
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364 addch(SECRETDOOR); |
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365 else |
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366 addch(DOOR); |
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367 |
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368 /* Insert the new room into the linked list of rooms */ |
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369 newroom = new_item(sizeof(coord)); |
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370 exit = DOORPTR(newroom); |
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371 *exit = *cp; |
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372 attach(rm->r_exit, newroom); |
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373 } |
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374 |